Sennheiser MD21-N
Dynamic omnidirectional microphone.


Year introduced
1953
Year discontinued
unknown
Polar pattern
Omnidirectional
Frequency range
40-18,000Hz
Sensitivity
1.8 mV/Pa
Impedance
200 Ohms
Weight
0.27 kg (9.5 oz)
Dimensions
46 x 46 x 143 mm (1.8 x 1.8 x 5.6 inches)
Material
Die cast zinc housing
Features
-
Connector(s) used
DIN 41524 (Klein Tuchel)

Originally designed as a reporter's microphone, this virtually indestructable object finds a lot of use in studio recording.

There is also a dual impedence version with a different pinout (MD21-HL or MD21-HN), and a version using a Gross Tuchel connector (MD21-2).